Finding the Fourth Proportional to 22,849.86, 31,533.52 and 12,778.72

Step by Step Solution

1. Step 1: Write the proportion equation
   22,849.86 : 31,533.52 = 12,778.72 : x
2. Step 2: Convert to fraction form
   22,849.86/31,533.52 = 12,778.72/x
3. Step 3: Cross multiply
   22,849.86x = 31,533.52 × 12,778.72
4. Step 4: Simplify right side
   22,849.86x = 402,958,022.69
5. Step 5: Solve for x
   x = 402,958,022.69/22,849.86
6. Step 6: Final answer
   x = 17,635.03